Fig. 2

Localization of treated aneurysms, arteriovenous malformations, and dural arteriovenous fistulas. VA = vertebral artery, BA = basilar artery, ICA = internal carotid artery, MCA = middle cerebral artery, ACOM = anterior communicating artery, PCOM = posterior communicating artery, PCA = posterior cerebral artery. Another 16 localizations were distributed as follows: Left MCA + ICA = 1; bilateral ICA = 1; ophthalmic artery = 1; cavernous sinus = 1; left sigmoid sinus = 1, and unspecified locations (n = 11)